Fix GitHub Pages deploy (gh-pages branch)

Author: Lysandre Costes

.github/workflows/deploy-pages.yml

@@ -6,9 +6,7 @@ on:
   workflow_dispatch:
 
 permissions:
-  contents: read
-  pages: write
-  id-token: write
+  contents: write
 
 concurrency:
   group: pages
@@ -17,17 +15,12 @@ concurrency:
 jobs:
   deploy:
     runs-on: ubuntu-latest
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
     steps:
       - uses: actions/checkout@v4
 
-      - uses: actions/configure-pages@v4
-
-      - uses: actions/upload-pages-artifact@v3
+      - name: Publish website/ to gh-pages branch
+        uses: peaceiris/actions-gh-pages@v4
         with:
-          path: website
-
-      - id: deployment
-        uses: actions/deploy-pages@v4
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./website
+          publish_branch: gh-pages

README.md

@@ -22,12 +22,17 @@ No build step. D3, Three.js, and fonts are loaded from CDNs in `index.html`.
 
 ### GitHub Pages
 
-The site is hosted on GitHub Pages.
+Live site: [com-480-data-visualization.github.io/com-480-project-pff](https://com-480-data-visualization.github.io/com-480-project-pff/)
 
-1. Push to `main` (workflow in `.github/workflows/deploy-pages.yml` publishes the `website/` folder).
-2. On GitHub: **Settings → Pages → Build and deployment → Source** → choose **GitHub Actions**.
-3. After the workflow succeeds, open
-  **[https://com-480-data-visualization.github.io/com-480-project-pff/](https://com-480-data-visualization.github.io/com-480-project-pff/)**
+**One-time setup** (repo admin):
+
+1. **Settings → Pages → Build and deployment**
+2. **Source:** Deploy from a branch
+3. **Branch:** `gh-pages` · folder **`/ (root)`** → Save
+
+Each push to `main` runs the workflow and updates the `gh-pages` branch from `website/` (Three.js, D3, and JSON included). If the workflow failed before with *Get Pages site failed*, that was because Pages was not enabled yet — the steps above fix it.
+
+**Re-deploy manually:** Actions → *Deploy website to GitHub Pages* → *Run workflow*
 
 ---